Method for automatically detecting and completing setting matching of high speed digital signal in receiving and transmitting directions

Abstract

The present invention relates to a method for automatically detecting and completing setting matching of a high speed digital signal in receiving and transmitting directions. The method comprises the following steps of: (1) designing a test plate; (2) developing a high speed digital signal cross board; (3) designing a control module, and completing traversal of the preaccentuation of all data output terminals and the equalization setting of data input terminals; (4) by using a second test board, collecting combination setting of all preaccentuation and equalization configuration and a bit error rate result of a corresponding pseudo random code verifier, and searching the combination of effective equalization and preaccentuation configuration with an optimal bit error rate; (5) on the condition that all high speed digital signal transmission lines have no problem is detected and confirmed, storing optimal data obtained in the control module for the use of future development. According to the method, the detection and setting of the high speed digital signal detection lines can be automatically completed without the need of manual intervention, manpower and material resources are saved, the accuracy of a result is raised, the method is applied to the integrity detection of all high speed digital signals, and the expansion of functions can be carried out latterly.

Description

technical field [0001] The invention relates to the technical field of high-speed digital signal integrity detection, in particular to a method for automatically detecting and completing the setting and matching of high-speed digital signal sending and receiving directions. That is: the high-speed digital signal of telecommunication equipment is detected by automatic means to complete the method of setting and matching the sending and receiving direction on the corresponding signal line. Background technique [0002] The current telecommunication equipment is developing towards the direction of high integration, the frequency of the data bus signal is doubled, and there is an essential difference between high-speed digital signal and low-speed digital signal transmission. In the case of using 2.5Gbps, 10Gbps or even higher speed Influenced by factors such as line width, line length, and medium selection, there are unfavorable factors such as signal attenuation, intersymbol i...

AI Technical Summary

Problems solved by technology

In the case of a small number of high-speed digital signal lines, a high-speed oscilloscope can be used to measure and manually set the relevant settings in the high-speed digital signal processor to achieve the goal; and the current telecommunication equipment has developed to hundreds or even thousands of 2.5Gbps Even in the case of 10Gbps high-speed digital signal lines, the method of instrument measurement and manual setting can no longer meet the needs of technology development and product manufacturing

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